TPS61193

FB

PWM

OUT1

OUT2

OUT3

L1

D1

Up to 100 mA/string

SW

LDO

FSET

VDDIO/EN

SYNC

PGND

GND

PAD

VIN

ISET

FAULT

EN

BRIGHTNESS

R1

R2

Brightness (%)

0

10

20

30

40

50

60

70

80

90

100

50

55

60

65

70

75

80

85

90

95

100

D001

VIN=5V

VIN=8V

VIN=12V

VIN=16V

Product

Folder

Sample &

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Technical

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TPS61193

SNVSAF4 – OCTOBER 2015

TPS61193 High-Performance 3-Channel LED Driver

1 Features

3 Description

The TPS61193 is a high-efficiency, low-EMI, easy-to-

1

•

Input Voltage Operating Range 4.5 V to 40 V

use LED driver with flexibility to support a wide range

•

Three High-Precision Current Sinks

of applications. It has three high-precision current

–

Current Matching 1% (typical)

sinks that can be combined for higher current

capability per string. The device provides high

–

Output Current up to 100 mA per Channel

dimming ratio 10 000:1 for up to 200 Hz input PWM

–

Outputs can be combined externally for higher

frequency.

current per string

The TPS61193 has an integrated DC-DC supporting

•

High Dimming Ratio 10 000:1 at 200 Hz

both boost and SEPIC mode operation. The converter

•

Integrated DC-DC for LED String Power

has adaptive output voltage control based on the LED

–

Boost and SEPIC modes supported

current

sink

headroom

voltages.

This

feature

minimizes the power consumption by adjusting the

–

Output Voltage up to 45 V

voltage to lowest sufficient level in all conditions. For

–

Switching Frequency 300 kHz to 2.2 MHz

EMI control the DC-DC converter supports spread

•

EMI Minimization

spectrum for switching frequency and an external

synchronization with dedicated pin.

–

DC-DC Synchronization Input

–

Spread Spectrum Option

The TPS61193 has wide input voltage range from 4.5

V to 40 V for robust support of different types of

•

Extensive Fault Detection Features

applications. The TPS61193 integrates extensive

–

Fault Output

fault detection features.

–

Input Voltage OVP and UVLO

Device Information(1)

–

Open and Shorted LED Fault Detection

PART NUMBER

PACKAGE

BODY SIZE (NOM)

–

Thermal Shutdown

TPS61193

HTSSOP (20)

6.50 mm × 4.40 mm

•

Minimum Number of External Components

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

2 Applications

space

Industrial Backlighting Systems in Control Panels

and Test & Measurement Equipment

space

Simplified Schematic

System Efficiency

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.